Echidnopsis

Echidnopsis is a genus of succulent, cactus-like plants in the family Apocynaceae, first described as a genus in 1871. They are native to eastern Africa and the Arabian Peninsula.

• # Echidnopsis angustiloba E.A.Bruce & P.R.O.Bally - Kenya
 * Accepted species

• # Echidnopsis archeri P.R.O.Bally - Kenya

• # Echidnopsis ballyi (Marn.-Lap.) P.R.O.Bally - N Somalia

• # Echidnopsis bentii N.E.Br. ex Hook.f. - Arabia

• # Echidnopsis bihenduhensis P.R.O.Bally - N Somalia

• # Echidnopsis cereiformis Hook.f. - South Africa

• # Echidnopsis chrysantha Lavranos - Somalia

• # Echidnopsis ciliata P.R.O.Bally - N Somalia

• # Echidnopsis dammaniana Sprenger - Eritrea

• # Echidnopsis ericiflora Lavranos - Kenya

• # Echidnopsis globosa Thulin & Hjertson - Yemen

• # Echidnopsis inconspicua Bruyns

• # Echidnopsis insularis Lavranos - Socotra

• # Echidnopsis leachii Lavranos

• # Echidnopsis malum (Lavranos) Bruyns - Somalia

• # Echidnopsis mijerteina Lavranos - Somalia

• # Echidnopsis milleri Lavranos - Socotra

• # Echidnopsis montana (R.A.Dyer & E.A.Bruce) P.R.O.Bally 	- Ethiopia

• # Echidnopsis multangula (Forssk.) Chiov. - Arabia

• # Echidnopsis planiflora P.R.O.Bally - Somalia, Ethiopia

• # Echidnopsis radians Bellerue-Bleck - Kenya

• # Echidnopsis repens R.A.Dyer & Verdoorn - Tanzania

• # Echidnopsis rubrolutea Plowes - Somalia

• # Echidnopsis scutellata (Deflers) A.Berger - Arabia, Kenya

• # Echidnopsis seibanica Lavranos - Arabia

• # Echidnopsis sharpei A.C.White & B.Sloane - Kenya, Somalia

• # Echidnopsis similis Plowes - Somalia

• # Echidnopsis socotrana Lavranos - Socotra

• # Echidnopsis squamulata (Decne.) P.R.O.Bally - Arabia

• # Echidnopsis uraiqatiana Dioli - Eritrea

• # Echidnopsis urceolata P.R.O.Bally - Kenya

• # Echidnopsis virchowii K.Schum. - Somalia, Kenya, Tanzania

• # Echidnopsis watsonii P.R.O.Bally - Somalia

• # Echidnopsis yemenensis Plowes - Yemen

Echidnopsis quadrangula now Caralluma quadrangula
 * Species formerly included

Phylogenetic studies have shown the genus to be monophyletic, and most closely related to the genus Rhytidocaulon. Marginally more distantly related is a sister branch comprising the genus Pseudolithos and the widespread Caralluma stapeliads of North Africa.
 * Taxonomy